Home / 129,831.98-179,198.01-76,134.29

Finding the Fourth Proportional to 129,831.98, 179,198.01 and 76,134.29

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Solution

The fourth proportional to 129,831.98, 179,198.01 and 76,134.29 is: 105,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,831.98 : 179,198.01 = 76,134.29 : x
  2. Step 2: Convert to fraction form
    129,831.98/179,198.01 = 76,134.29/x
  3. Step 3: Cross multiply
    129,831.98x = 179,198.01 × 76,134.29
  4. Step 4: Simplify right side
    129,831.98x = 13,643,112,364.77
  5. Step 5: Solve for x
    x = 13,643,112,364.77/129,831.98
  6. Step 6: Final answer
    x = 105,082.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.